connelly



lT. E. O ONNELLY. Fire-Extinguishers.

No. 196,563 Patented Oct. 30,1877.

v; @gambit Manantial description 0f Carbonia-acid grasland-Water; algld-2 Sl.:a1.S.Q. adeptedfor 11S@ as a generator, 110 generate the sas and mix the .same .with the rater lPQ-.Jee

` employed; the 'iene' beng Produced "from 2 mixture of certain/chemical hereinafter described.

compounds, as,I

In the drawing, A or tank of any desired capacity, and Bfasimilar i tank or chamber, which'is preferably somewhat smaller in size, and is arranged or placed over vthe tankA either longitudinally, as in Fig. 1, or vertically,las in Fig. 3, so that the contents .of the chamber B may be drawn into the chamber A, if desired. I have shown these chambers as madeof considerable capacity, and mounted on a cart or carriage, C. The

`.apparatus may, however, be made stationary l -or lighter, soas to be transportedby hand. Both these chambers A and B are made tight as against pressure from within, and they are thatEShQWMnFie-lbut 0011- Structed' and-015ertwain-substantially the V n v o o f-fFig-2 )hows this pipeistraight, the coils l nr d arreratusisdesiened f rlnse4 l,bei A- Pressurege'ges. d 1f are bi reffeeuef arranged: .with the members, 110 indicate 1' A1pine.,fvithtopooek .0. therein, Connects .I ythe top or' the .chamber l with the top o the Y chamber Ag. also., a pipe, @,with cock e', vcon-,

.nefctsf-th'e same chambers z ttthey bottom. listh@ dishargehosewheh maybewound .-.onafreeb Bron-coiled in a `coilveninllt box, 3.4,. f

- EigdThedschargeis controlled byacock,-1t..

. Inlajldisarin .co-11.11.,@@tildethetwoQham- AffbrS, asf:slilowlrr,1 land is provided with a Stor tingshin appa.

. cook. y This ripe Msbynreferene .coiled- -as shown-,so as to present .Considerable Surface to. some heatin g-ameywhich maybe had either froma lamp, n',- nlacedin .the-,basa of. the` closing-casem, orfrom any convenient source. f Thcobject in vewin heating the. pipe. is to nhendesired, between the A.

.ducea circulation, two chambers...

-being omitted. `I nthisfcase .circulation-s es- ;tablished by meansof a steam-jet forced into f the pipe throughthe injector siphon o, which l -is arrangedto lenter the pipe at any convenient A Iuhhargingnmyanparats for use, 'lfprefer i to make use of compounds lfor generating. gas

describedand claimed in. the .application for patent pfJ Connelly, '.ledAligustS, 18.7274. namely, granulated bicarbonate of soda and porous sulphate bf'alumina. Other compounds may be used, however, which, when mixed, will generate the required gas.

The stop-cocks in the pipes which connect the two chambers being closed, the upper chamber B is lled with water, or so nearly filled that, upon the addition of the requisite carbonate of soda or other compound, the chamber shall be full. The chamber Ais also suppliedwith water to such an amount that when the sulphate of alumina or other compound is added, the chamber shall be nearly but not quite full.

The contents ofthese two chambers may then be mixed in either of the two following ways, and, first, intermixture may be made through the pipes c and e alone, for if the cocks c' and e be opened, a part ofthe contents of the chamber B will How through the pipe e to the chamber A, and a corresponding volume of air in the top .offthe chamber A will pass throughthe pipelctofthe chamber B. I prefer, themf to close` the `cocks c' veior atime.

As already mentioned, the chamber B conl -tains a solutionof bicarbonate of soda, and

a portion` of this being passed to the chamber A, as described, and mixing with the solution of sulphate 'of "alumina in this chamber A, car- 4 bonic-acid gas will be generated, which will -place the contents of this chamber under pressure, as willbe indicated by the gage d'. On

again opening the cock e', this pressure will force apart of the contents of A into B, when gas will, inturn, be generated in this chamber VB, and an excess of pressure obtained there.

iIn this manner the operation may be contin uedluntilacontinuous circulationis established, andthe contents of the two chambers have be;

cometlioroughly intermingled and the full ca` pacty gas, generted Asecond @method of causing circulation is by means of the -pipe i and one or both of the pipesdc. y' Heart vbeing applied to the pipe fi, asalreadyjldescribed, a movement will take placeicontents, and the cock i being opened, such, v:movement will result in mixing a portion of the contents ofthe two chambers.

the pipe By forcing steam into the pipe, andl` one or both the pipes c e being opened, the de` sired circulation may bev established in substantially the same manner as before described.

I-,consider lthe last two methods preferable to theJ iirst, especially when expedition is required,""as by warming `somewhat the contents of ,they chambers the generation of gas is facilitated, and, especially in the last method, the

presence, of steam assists in acquiring and maintainingw the desired pressure.

Thechambers A and B being filled with their respective' solutions, as described, they may, if

desired, be kept in that conditionltilljrequired for use; beta1 Prefer., on en gin theichemfbers', to generate gas* andsecufr themed-insite fVhatever compounds areiusedfforfgeneratin 'g the required gas,'I prefer touse"theni'in suiiicient quantity to securea pressure of about one hundred and fty pounds tothe square inch. 0n opening the cockrl, th ingled gas andwater in the chambersmay thehose H to the desiredpo Q l advantage arisihgmmyimr sdpnfrats ,is the lcirculation which :thereby obtain f be; tween theV chambersholding `,l1 different solu" f1" tions. 4By'means of this circulati and thorough 'a mixture j is obta' greatest possible amountgffg y, a given amount of chemicalcomp'oinds." I claim herein asmyzinventioii -1. ln a dre extinguishing apparatus, the#Y combination of chambersA and B,con'nectingl n pipes c and e, and cocksciandesubstantially; asv described, whereby the contentsof the two chambers may be intermixedbyfmeansfoffa e circulation established through'the c oim'ecting` i apes- 11; t

`2. The combinationofclosedchainbers Aand f B, having two or more connectng-pipesjwith stop-cocks therein, and a device for artiicially i creating .al current in one' of thelgconiiectingf. pipes, substantially as and for the purpose set 'rth 'v Af-I I j In testimony whereof I have my hand. 

